NO20082811L - Apparatus for gripping a tubular on a drilling rig - Google Patents

Apparatus for gripping a tubular on a drilling rig

Info

Publication number
NO20082811L
NO20082811L NO20082811A NO20082811A NO20082811L NO 20082811 L NO20082811 L NO 20082811L NO 20082811 A NO20082811 A NO 20082811A NO 20082811 A NO20082811 A NO 20082811A NO 20082811 L NO20082811 L NO 20082811L
Authority
NO
Norway
Prior art keywords
gripping
tubular
pipes
drilling rig
redundant
Prior art date
Application number
NO20082811A
Other languages
English (en)
Other versions
NO333092B1 (no
Inventor
Ii Albert C Odell
Gary Thompson
Karsten Heidecke
Richard L Giroux
Michael Hayes
Tuong Thanh Le
Joerg Loenz
Jr Doyle Frederic Boutwell
Bernd-Georg Pietras
Original Assignee
Weatherford Lamb
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weatherford Lamb filed Critical Weatherford Lamb
Publication of NO20082811L publication Critical patent/NO20082811L/no
Publication of NO333092B1 publication Critical patent/NO333092B1/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/05—Cementing-heads, e.g. having provision for introducing cementing plugs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/165—Control or monitoring arrangements therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • E21B33/16—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement charge; Plugs therefor
    • E21B33/165—Cementing plugs specially adapted for being released down-hole

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Manipulator (AREA)
  • Punching Or Piercing (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Specific Conveyance Elements (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Fremgangsmåte og apparat for kjøring av rør inn i og ut av et brønnhull. Et gripeapparat aktiveres med en aktuator som har en primær aktuator og et redundant sikkerhetstrekk. Det redundante sikkerhetstrekk kan innbefatte ett eller flere redundante fluidopererte stempler. Gripeapparatet kan innbefatte integrert sikkerhetssystem som er tilpasset for å hindre skade på rørene mens forbindelser mellom rørene og rørstrengen gjøres opp og frakoples.
NO20082811A 2005-12-12 2008-06-23 Apparat for a gripe et ror pa en borerigg NO333092B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74945105P 2005-12-12 2005-12-12
PCT/US2006/061945 WO2007070805A2 (en) 2005-12-12 2006-12-12 Apparatus for gripping a tubular on a drilling rig

Publications (2)

Publication Number Publication Date
NO20082811L true NO20082811L (no) 2008-08-26
NO333092B1 NO333092B1 (no) 2013-03-04

Family

ID=38124138

Family Applications (5)

Application Number Title Priority Date Filing Date
NO20082811A NO333092B1 (no) 2005-12-12 2008-06-23 Apparat for a gripe et ror pa en borerigg
NO20110681A NO20110681L (no) 2005-12-12 2011-05-09 Apparat for a gripe et ror pa en borerigg
NO20110682A NO342755B1 (no) 2005-12-12 2011-05-09 Rørhåndteringssystem og fremgangsmåte for å overvåke samme.
NO20110680A NO342756B1 (no) 2005-12-12 2011-05-09 Apparat og fremgangsmåte for å gripe et rør på en borerigg
NO20121262A NO20121262L (no) 2005-12-12 2012-10-29 Apparat for å gripe et rør på en borerigg

Family Applications After (4)

Application Number Title Priority Date Filing Date
NO20110681A NO20110681L (no) 2005-12-12 2011-05-09 Apparat for a gripe et ror pa en borerigg
NO20110682A NO342755B1 (no) 2005-12-12 2011-05-09 Rørhåndteringssystem og fremgangsmåte for å overvåke samme.
NO20110680A NO342756B1 (no) 2005-12-12 2011-05-09 Apparat og fremgangsmåte for å gripe et rør på en borerigg
NO20121262A NO20121262L (no) 2005-12-12 2012-10-29 Apparat for å gripe et rør på en borerigg

Country Status (11)

Country Link
EP (7) EP2322756A3 (no)
CN (3) CN102937007A (no)
AT (1) ATE464455T1 (no)
AU (4) AU2006325824B2 (no)
BR (1) BRPI0619754B8 (no)
CA (3) CA2937095C (no)
DE (1) DE602006013702D1 (no)
DK (1) DK2284357T3 (no)
EA (3) EA022508B1 (no)
NO (5) NO333092B1 (no)
WO (1) WO2007070805A2 (no)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7874352B2 (en) 2003-03-05 2011-01-25 Weatherford/Lamb, Inc. Apparatus for gripping a tubular on a drilling rig
CA2937095C (en) * 2005-12-12 2019-02-26 Weatherford Technology Holdings, LLC. Apparatus for gripping a tubular on a drilling rig
US7784834B2 (en) * 2007-03-28 2010-08-31 Varco I/P, Inc. Clamp apparatus for threadedly connected tubulars
US7963323B2 (en) 2007-12-06 2011-06-21 Schlumberger Technology Corporation Technique and apparatus to deploy a cement plug in a well
EP3115543B1 (en) * 2007-12-12 2018-11-28 Weatherford Technology Holdings, LLC Top drive system
US20090274544A1 (en) 2008-05-02 2009-11-05 Martin Liess Apparatus and methods for wedge lock prevention
WO2009135223A2 (en) * 2008-05-02 2009-11-05 Weatherford/Lamb, Inc. Tubular handling apparatus
WO2009135220A2 (en) * 2008-05-02 2009-11-05 Weatherford/Lamb, Inc. Fill up and circulation tool and mudsaver valve
US8720541B2 (en) 2008-06-26 2014-05-13 Canrig Drilling Technology Ltd. Tubular handling device and methods
ES2651664T3 (es) * 2008-07-18 2018-01-29 Noetic Technologies Inc. Acoplamiento de extensión de agarre para proporcionar una herramienta de agarre con un rango operativo mejorado, y método de uso del mismo
AU2011343668B2 (en) 2010-12-17 2016-05-12 Weatherford Technology Holdings, Llc Electronic control system for a tubular handling tool
CA2976399C (en) * 2010-12-30 2018-11-13 First Subsea Limited Tubular handling device and methods
CN102383741B (zh) * 2011-07-30 2014-03-12 徐州盾安重工机械制造有限公司 全套管全回转钻机用套管夹紧装置
CN104131790B (zh) * 2013-05-04 2018-04-10 江苏康群科技发展有限公司 回转式变径油管夹紧器
CN103291234B (zh) * 2013-06-03 2015-06-10 中国海洋石油总公司 新型的水下水平连接器安装工具的二次锁紧机构
US10487597B2 (en) 2013-12-06 2019-11-26 Weatherford Technology Holdings, Llc Tubular handling tool
NO339203B1 (no) * 2013-12-20 2016-11-14 Odfjell Well Services Norway As Foringsrørverktøy
US9765579B2 (en) * 2013-12-23 2017-09-19 Tesco Corporation Tubular stress measurement system and method
CA2942356C (en) 2014-03-18 2019-12-31 Canrig Drilling Technology Ltd. System for operating a top drive assembly for subterranean operations
CN104481392B (zh) * 2014-12-04 2016-06-01 连云港黄海勘探技术有限公司 立轴岩心钻机双卡盘交替倒杆装置
US10626683B2 (en) * 2015-08-11 2020-04-21 Weatherford Technology Holdings, Llc Tool identification
US10465457B2 (en) 2015-08-11 2019-11-05 Weatherford Technology Holdings, Llc Tool detection and alignment for tool installation
EP4187056A1 (en) 2015-08-20 2023-05-31 Weatherford Technology Holdings, LLC Top drive torque measurement device
US10323484B2 (en) 2015-09-04 2019-06-18 Weatherford Technology Holdings, Llc Combined multi-coupler for a top drive and a method for using the same for constructing a wellbore
US10309166B2 (en) 2015-09-08 2019-06-04 Weatherford Technology Holdings, Llc Genset for top drive unit
US10590744B2 (en) 2015-09-10 2020-03-17 Weatherford Technology Holdings, Llc Modular connection system for top drive
CN105507840B (zh) * 2015-12-31 2018-08-14 徐州徐工基础工程机械有限公司 一种转盘钻机用事故处理装置
US10167671B2 (en) 2016-01-22 2019-01-01 Weatherford Technology Holdings, Llc Power supply for a top drive
US11162309B2 (en) 2016-01-25 2021-11-02 Weatherford Technology Holdings, Llc Compensated top drive unit and elevator links
CN106121508B (zh) * 2016-06-24 2019-11-26 三一重型能源装备有限公司 用于回转件的锁紧方法、锁紧装置、顶驱设备和钻机
CN106193000B (zh) * 2016-08-26 2018-04-20 中铁一局集团有限公司 液压全回转套管钻机
US10704364B2 (en) 2017-02-27 2020-07-07 Weatherford Technology Holdings, Llc Coupler with threaded connection for pipe handler
US10954753B2 (en) 2017-02-28 2021-03-23 Weatherford Technology Holdings, Llc Tool coupler with rotating coupling method for top drive
US11131151B2 (en) 2017-03-02 2021-09-28 Weatherford Technology Holdings, Llc Tool coupler with sliding coupling members for top drive
US10480247B2 (en) 2017-03-02 2019-11-19 Weatherford Technology Holdings, Llc Combined multi-coupler with rotating fixations for top drive
US10443326B2 (en) 2017-03-09 2019-10-15 Weatherford Technology Holdings, Llc Combined multi-coupler
US10247246B2 (en) 2017-03-13 2019-04-02 Weatherford Technology Holdings, Llc Tool coupler with threaded connection for top drive
US10711574B2 (en) 2017-05-26 2020-07-14 Weatherford Technology Holdings, Llc Interchangeable swivel combined multicoupler
CN106990042A (zh) * 2017-06-01 2017-07-28 中国石油大学(华东) 一种固井界面粘结力测定装置
US10526852B2 (en) 2017-06-19 2020-01-07 Weatherford Technology Holdings, Llc Combined multi-coupler with locking clamp connection for top drive
US10544631B2 (en) 2017-06-19 2020-01-28 Weatherford Technology Holdings, Llc Combined multi-coupler for top drive
US10527104B2 (en) 2017-07-21 2020-01-07 Weatherford Technology Holdings, Llc Combined multi-coupler for top drive
US10355403B2 (en) 2017-07-21 2019-07-16 Weatherford Technology Holdings, Llc Tool coupler for use with a top drive
US10745978B2 (en) 2017-08-07 2020-08-18 Weatherford Technology Holdings, Llc Downhole tool coupling system
US11047175B2 (en) 2017-09-29 2021-06-29 Weatherford Technology Holdings, Llc Combined multi-coupler with rotating locking method for top drive
US11441412B2 (en) 2017-10-11 2022-09-13 Weatherford Technology Holdings, Llc Tool coupler with data and signal transfer methods for top drive
US10704342B2 (en) * 2018-05-21 2020-07-07 2M-Tek, Inc. Hydraulic actuator with integral torque turn monitoring
CN110159220A (zh) * 2019-07-01 2019-08-23 承德市开发区富泉石油机械有限公司 石油行业井口设备快速连接装置
CN111963091B (zh) * 2020-08-05 2022-08-12 宝鸡金辉石油机械有限公司 一种井口设备快速插拔装置
CN115075737B (zh) * 2022-06-06 2023-03-10 浙江大学 一种自钻冻结式复合钻具及其使用方法
CN116291298B (zh) * 2023-04-24 2023-10-03 阜宁县宏达石化机械有限公司 具有防错位结构的完井封隔器

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757087A (fr) * 1969-12-03 1971-04-06 Gardner Denver Co Mecanisme de devissage de tiges de forage commande a distance
US4327261A (en) * 1977-03-15 1982-04-27 Bj-Hughes Inc. Apparatus for sensing a distended location on a drill pipe
SU1134693A1 (ru) * 1979-10-26 1985-01-15 Специальное Конструкторское Бюро Сейсмической Техники Устройство дл спуска и подъема колонны труб
US4529045A (en) * 1984-03-26 1985-07-16 Varco International, Inc. Top drive drilling unit with rotatable pipe support
SU1266974A1 (ru) * 1985-01-02 1986-10-30 Специальное Проектно-Конструкторское Бюро Автоматизации Глубокого Разведочного Бурения Устройство дл спуска бурильных труб
US4800968A (en) * 1987-09-22 1989-01-31 Triten Corporation Well apparatus with tubular elevator tilt and indexing apparatus and methods of their use
US4875530A (en) * 1987-09-24 1989-10-24 Parker Technology, Inc. Automatic drilling system
US4981180A (en) * 1989-07-14 1991-01-01 National-Oilwell Positive lock of a drive assembly
CA2518604C (en) * 1992-04-30 2008-03-25 Dreco Energy Services Ltd. Gripper head assembly for a pipe handling system
RU2018623C1 (ru) * 1992-06-05 1994-08-30 Акционерное общество открытого типа "Уральский завод тяжелого машиностроения" Вращатель труб буровых установок
US5390736A (en) 1992-12-22 1995-02-21 Weatherford/Lamb, Inc. Anti-rotation devices for use with well tools
US5388651A (en) * 1993-04-20 1995-02-14 Bowen Tools, Inc. Top drive unit torque break-out system
US5433279A (en) * 1993-07-20 1995-07-18 Tessari; Robert M. Portable top drive assembly
US5553667A (en) 1995-04-26 1996-09-10 Weatherford U.S., Inc. Cementing system
US5806589A (en) * 1996-05-20 1998-09-15 Lang; Duane Apparatus for stabbing and threading a drill pipe safety valve
NO302774B1 (no) * 1996-09-13 1998-04-20 Hitec Asa Anordning til bruk ved skjöting av fôringsrör
US5791410A (en) * 1997-01-17 1998-08-11 Frank's Casing Crew & Rental Tools, Inc. Apparatus and method for improved tubular grip assurance
US6742596B2 (en) 2001-05-17 2004-06-01 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
US6536520B1 (en) * 2000-04-17 2003-03-25 Weatherford/Lamb, Inc. Top drive casing system
US5896589A (en) * 1998-06-04 1999-04-27 Chou; Terry Swimming goggle frame with deformation prevention
DE60028425T2 (de) * 1999-03-05 2006-10-19 Varco I/P, Inc., Houston Ein- und Ausbauvorrrichtung für Rohre
US6431626B1 (en) * 1999-04-09 2002-08-13 Frankis Casing Crew And Rental Tools, Inc. Tubular running tool
CA2269393C (en) * 1999-04-21 2008-02-12 Universe Machine Corporation Power tong and backup tong system
US6311792B1 (en) * 1999-10-08 2001-11-06 Tesco Corporation Casing clamp
US6412554B1 (en) * 2000-03-14 2002-07-02 Weatherford/Lamb, Inc. Wellbore circulation system
US7107875B2 (en) * 2000-03-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for connecting tubulars while drilling
US7296623B2 (en) 2000-04-17 2007-11-20 Weatherford/Lamb, Inc. Methods and apparatus for applying torque and rotation to connections
US7325610B2 (en) * 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
US7264050B2 (en) 2000-09-22 2007-09-04 Weatherford/Lamb, Inc. Method and apparatus for controlling wellbore equipment
GB2377233B (en) * 2000-11-04 2005-05-11 Weatherford Lamb Safety mechanism for tubular gripping apparatus
CA2487120A1 (en) * 2002-05-30 2003-12-11 Gray Eot, Inc. Drill pipe connecting and disconnecting apparatus
EP1426550B1 (en) * 2002-11-27 2008-03-19 Weatherford/Lamb, Inc. Methods and apparatus for applying torque and rotation to coupling members
CA2520072C (en) * 2003-04-04 2010-02-16 Weatherford/Lamb, Inc. Method and apparatus for handling wellbore tubulars
NO20032220L (no) * 2003-05-15 2004-11-16 Mechlift As Lofteverktoy II og fremgangsmate for anvendelse av samme
CA2560333C (en) * 2004-03-19 2012-08-21 Tesco Corporation Spear type blow out preventer
US7284617B2 (en) * 2004-05-20 2007-10-23 Weatherford/Lamb, Inc. Casing running head
US7320374B2 (en) * 2004-06-07 2008-01-22 Varco I/P, Inc. Wellbore top drive systems
NO336302B1 (no) * 2004-06-07 2015-07-27 Varco Int Apparat og fremgangsmåte for ved hjelp av et toppdrevet rotasjonssystem å holde et rør
US7188686B2 (en) * 2004-06-07 2007-03-13 Varco I/P, Inc. Top drive systems
US7322406B2 (en) * 2004-07-16 2008-01-29 Frank's Casing Crew & Rental Tools, Inc. Elevation sensor for a service hose and an apparatus for positioning and stabbing well tubulars
CA2538196C (en) * 2005-02-28 2011-10-11 Weatherford/Lamb, Inc. Deep water drilling with casing
CA2937095C (en) * 2005-12-12 2019-02-26 Weatherford Technology Holdings, LLC. Apparatus for gripping a tubular on a drilling rig

Also Published As

Publication number Publication date
CA2633182A1 (en) 2007-06-21
EA201100260A1 (ru) 2011-10-31
NO333092B1 (no) 2013-03-04
EA200870051A1 (ru) 2008-10-30
CA2633182C (en) 2012-04-24
EP2284357A3 (en) 2014-05-07
ATE464455T1 (de) 2010-04-15
CA2937095C (en) 2019-02-26
CA2768010C (en) 2016-09-20
EP2189618A2 (en) 2010-05-26
EA201500372A1 (ru) 2016-01-29
NO20110682L (no) 2008-08-26
CN102943637B (zh) 2015-02-04
EP2189618A3 (en) 2014-05-07
AU2016273903A1 (en) 2017-01-12
NO20110680L (no) 2008-08-26
EP2322755A3 (en) 2014-05-07
DE602006013702D1 (de) 2010-05-27
BRPI0619754B1 (pt) 2017-12-05
EP1963612A2 (en) 2008-09-03
EP2284356A3 (en) 2014-05-07
EA015156B1 (ru) 2011-06-30
NO342755B1 (no) 2018-08-06
EP2284357B1 (en) 2020-05-20
NO20121262L (no) 2008-08-26
CN101365860A (zh) 2009-02-11
DK2284357T3 (da) 2020-08-24
AU2010202601A1 (en) 2010-07-15
BRPI0619754B8 (pt) 2018-06-12
NO20110681L (no) 2008-08-26
CA2768010A1 (en) 2007-06-21
CN102937007A (zh) 2013-02-20
CA2937095A1 (en) 2007-06-21
BRPI0619754A2 (pt) 2011-10-18
AU2010202601B2 (en) 2013-02-07
NO342756B1 (no) 2018-08-06
EP1963612B1 (en) 2010-04-14
EP2284355A2 (en) 2011-02-16
AU2013205714A1 (en) 2013-05-23
EP2322755A2 (en) 2011-05-18
EP2322756A2 (en) 2011-05-18
EP2284357A2 (en) 2011-02-16
WO2007070805A2 (en) 2007-06-21
AU2006325824A1 (en) 2007-06-21
EP2284355A3 (en) 2014-05-07
EP2322756A3 (en) 2014-05-07
WO2007070805A3 (en) 2008-02-07
CN101365860B (zh) 2012-11-28
CN102943637A (zh) 2013-02-27
AU2006325824B2 (en) 2010-05-20
EA022508B1 (ru) 2016-01-29
EP2284356A2 (en) 2011-02-16

Similar Documents

Publication Publication Date Title
NO20082811L (no) Apparatus for gripping a tubular on a drilling rig
WO2006121928A3 (en) Tubular runing tool and method of using same
NO20072021L (no) Fremgangsmate og anordning for intervensjon i en undervanns produksjonsbronn
NO20072649L (no) Apparatus and method for guiding pipe
NO20083844L (no) Apparatus and method for running tubulars
NO20084093L (no) Subsea reparasjons- og vedlikeholdsverktoy for rorledning, samt fremgangsmate for utskiftning av odelagte rorledninger
NO20080518L (no) Anordning for posisjonering av boreenhet
NO20080642L (no) Trykkstyring ved hjelp av ettergivende ledeanordning
WO2010127457A8 (en) Sliding sleeve sub and method and apparatus for wellbore fluid treatment
NO341624B1 (no) Elektrohydraulisk prosesskontrollsystem og fremgangsmåte.
NO20092619L (no) Vattilpasset bronnforbindelse
NO20054042L (no) Automatisk verktoyfrigjoring
WO2005024169A3 (en) Automated arm for positioning of drilling tools such as an iron roughneck
BRPI0517081A (pt) manipulador pivotante de tubulação para preparação fora de linha de acoplamentos de tubulação de perfuração
NO20170080A1 (no) Apparat og tilhørende fremgangsmåte for håndtering av borerør på en boreplattform
WO2010120521A3 (en) Articulating drill method and apparatus for cutting openings in nested strings of underwater piping and/or tubing for overturned wells or platforms
NO20073700L (no) Verktoy for a forhindre kollaps pa slitasjeforing
NO20070182L (no) Kompensator for rorseksjon
GB2463765A (en) Apparatus and method for moving connection equipment on a drilling rig
NO20082430L (no) Separasjonstank for brønnfluid, for separasjon av fluid omfattende vann, olje og gass, anvendelse av en slik tank og fremgangsmåte for å separere et brønnfluid som inkluderer vann, olje og gass
WO2009014821A3 (en) Method for recovering crude oil from a subterranean formation
NO20080494L (no) Undervannsutstyr
EP2228513A3 (en) Wireline run fracture isolation sleeve and plug and method of operating same
BRPI0905374A8 (pt) Método de perfurar através de uma formação
WO2011067353A3 (en) Assembly and method for subsea well drilling and intervention

Legal Events

Date Code Title Description
CHAD Change of the owner's name or address (par. 44 patent law, par. patentforskriften)

Owner name: WEATHERFORD TECHNOLOGY HOLDINGS, US

CREP Change of representative

Representative=s name: BRYN AARFLOT AS, STORTINGSGATA 8, 0161 OSLO, NORGE

MM1K Lapsed by not paying the annual fees